Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 52 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) oily paper (d) clear plastic film
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a magnet
4. 4.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) wear a cap (c) sit in the shade (d) mark with chalk
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a balloon (d) a sunny open place
6. 6.True or false: a mirror is needed for the shadow clock. (a) True (b) False
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
8. 8.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
9. 9.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) tissue paper (d) a book
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) the same spot
13. 13.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
14. 14.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
15. 15.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a straight stick
18. 18.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🔍 Which is the odd one out? (a) clean water (b) butter paper (c) frosted glass (d) oily paper
22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
25. 25.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) chalk to mark shadows
27. 27.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) a clock to check (d) chalk to mark shadows
28. 28.🔦 Which of these is translucent? (a) frosted glass (b) a book (c) a steel plate (d) a brick
29. 29.🔦 Which of these is transparent? (a) butter paper (b) your hand (c) tissue paper (d) air
30. 30.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a straight stick (d) a magnet
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same stick (c) shadow length
33. 33.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) your hand (d) clear glass
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
35. 35.True or false: clear glass is translucent. (a) True (b) False
36. 36.🔦 Which of these is translucent? (a) air (b) a brick (c) clear plastic film (d) tissue paper
37. 37.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
40. 40.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

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